When the movement of engine is no longer required the pilot usually gives the order like this（） .

单项选择题When a tug is pulling on a hawser at right angles to the ship，and the pilot wants to come ahead or astern on the ship’s engine，care must be taken that the pilot（）.

A.does not break the towline
B.does not get too much way on the vessel
C.keeps a steady course so the towline will remain tight
D.turns the ship toward the direction of pull

单项选择题When a pilot is on board to pilot the vessel the Letter （） must be hoisted．

A.G
B.H
C.B
D.N

单项选择题Vessels must （） pilot at waiting anchorage．

A.wait
B.wait for
C.be waited
D.be waited for

单项选择题There shall be two principal （） through the harbor for the passage of vessels of over 60 tons burden．

A.straits
B.channels
C.canals
D.roadsteads

单项选择题The transfer procedures for oil products are required to be posted （）.

A.in the pilothouse
B.in the officer's lounge
C.in the upper pumproom flat
D.where they can be easily seen or readily available